cPanel as backup e-mail server


Mar 1, 2007
Bartlett, IL, US
I would like to setup my cPanel server as a backup e-mail server so that once the primary server fails mail traffic would automatically flow to the secondary (cPanel) sever. The MX record setup is simple and I have no problems setting up an MX record with a higher value to catch the traffic. My question is what do I need to do to get Exim to not only hold e-mails for the domains that I'm backing up but also in a manner that they can use it for sending mail? Has anyone done this or does anyone have any ideas?:)
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